
Quoting
jk
did you request the old part from the garage?
is the dealership willing to testify that the t-stat they found was an old thermostat or a broken new one?
engines don't just "blow" when overheating. You have to continue to run the vehicle after it overheats to cause damage. The warnings are such that there should be no damage if the warning is addressed immediately.
It's odd that your thermostat "went out" on 2-03 and was worked on. Then, over a month later it overheats again and then there is damage. What makes you think if the thermostat was malfunctioning on 2-03 that it would magically work for over a month before giving you a problem.
while you might be able to claim damages from the garage, there are a lot of questions between here and there; A lot of tough questions and some high hurdles to overcome.